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$158+ Cheap flights from Ottawa (YOW) to San Diego (SAN)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/1. Fares are subject to change and may not be available on all flights or dates of travel.
YOW — SAN
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
1 adult, Economy
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Cheapflights Tip: The best prices from Ottawa to San Diego are usually found in May or November, booked 18 days in advance, depart on a Wednesday or Tuesday and return on a Wednesday

Cheap flight deals from Ottawa to San Diego

Discover tips and strategies to find the most affordable flight options for your journey from Ottawa (YOW) to San Diego (SAN). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated June 12, 2025.

Round-trip from

$242
(SmartFares)

One-way from

$158
(WestJet)

Popular in

July

Cheapest in

May

Average price

$434
From Ottawa to San Diego
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One-way flight from Ottawa to San Diego
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Highest demand for flights based on searches. 5% potential increase in price ($24 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($6 potential savings vs. average RT price).
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Average for round-trip flights in June 2025
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Find flight deals from Ottawa to San Diego

Cheapest flights from Ottawa to San Diego
Explore the most affordable flight options available from Ottawa to San Diego. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 12, 2025.

This SmartFares deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/166:00 amYOW - SAN
1 stop10h 20mWestJet
Sun 7/202:05 pmSAN - YOW
2 stops12h 20mWestJet
Deal found 6/10$242
This United Airlines deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/132:45 pmYOW - SAN
2 stops11h 59mUnited Airlines
Mon 8/188:44 pmSAN - YOW
2 stops10h 14mUnited Airlines
Deal found 6/10$271
This Air Canada deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/286:25 amYOW - SAN
1 stop8h 10mAir Canada
Mon 9/158:10 amSAN - YOW
1 stop9h 04mAir Canada
Deal found 6/12$278
This Kiwi.com deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/146:00 amYOW - SAN
1 stop10h 20mMultiple Airlines
Fri 8/156:57 pmSAN - YOW
2 stops12h 24mMultiple Airlines
Deal found 6/10$328
This Delta deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/155:55 amYOW - SAN
2 stops16h 31mDelta
Sun 8/176:25 amSAN - YOW
2 stops14h 57mDelta
Deal found 6/10$385
This Lufthansa deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/38:55 pmYOW - SAN
2 stops45h 30mLufthansa
Sun 9/145:15 pmSAN - YOW
2 stops44h 59mLufthansa
Deal found 6/12$11,827

Cheapflights Fare Finder

Customize your flight search to find flights from Ottawa to San Diego that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated June 12, 2025.
Use the filters below to find and compare flights from Ottawa to San Diego that are best for you.

Fly from

Ottawa

Fly to

San Diego

Route

Depart

Return

Price

OttawaSan Diego

YOW - SAN

YOWSAN

Ottawa

Wed 7/16

6:00 am-1:20 pm

1 stop10h 20m

San Diego

Sun 7/20

2:05 pm-5:25 am

2 stops12h 20m

$242

OttawaSan Diego

YOW - SAN

YOWSAN

Ottawa

Wed 8/13

2:45 pm-11:44 pm

2 stops11h 59m

San Diego

Mon 8/18

8:44 pm-9:58 am

2 stops10h 14m

$271

OttawaSan Diego

YOW - SAN

YOWSAN

Ottawa

Thu 8/28

6:25 am-11:35 am

1 stop8h 10m

San Diego

Mon 9/15

8:10 am-8:14 pm

1 stop9h 04m

$278

OttawaSan Diego

YOW - SAN

YOWSAN

Ottawa

Thu 8/14

6:00 am-1:20 pm

1 stop10h 20m

San Diego

Fri 8/15

6:57 pm-10:21 am

2 stops12h 24m

$328

OttawaSan Diego

YOW - SAN

YOWSAN

Ottawa

Fri 8/15

5:55 am-7:26 pm

2 stops16h 31m

San Diego

Sun 8/17

6:25 am-12:22 am

2 stops14h 57m

$385

OttawaSan Diego

YOW - SAN

YOWSAN

Ottawa

Wed 9/3

8:55 pm-3:25 pm

2 stops45h 30m

San Diego

Sun 9/14

5:15 pm-5:14 pm

2 stops44h 59m

$11,827

OttawaSan Diego

YOW - SAN

YOWSAN

Ottawa

Mon 9/1

6:00 am-1:20 pm

1 stop10h 20m

$158

OttawaSan Diego

YOW - SAN

YOWSAN

Ottawa

Tue 7/1

10:37 am-8:16 pm

3 stops12h 39m

$163

OttawaSan Diego

YOW - SAN

YOWSAN

Ottawa

Tue 7/1

12:20 pm-6:26 pm

3 stops33h 06m

$172

OttawaSan Diego

YOW - SAN

YOWSAN

Ottawa

Fri 9/19

6:30 am-11:31 am

1 stop8h 01m

$178

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/9

Showing 1-10 of 11 results
1
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Best time to book a flight from Ottawa to San Diego

Have a flexible travel schedule? Discover the best time to fly to San Diego from Ottawa with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Ottawa to San Diego

How far ahead should I book a flight from Ottawa to San Diego?

Use this chart to determine the optimal time to book a round-trip flight from Ottawa to San Diego. Price data was last updated on June 9, 2025.

The best time to book flights from Ottawa to San Diego is 18 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

What is the cheapest month to book a flight from Ottawa to San Diego?

Currently, August is the cheapest month in which you can book a flight from Ottawa to San Diego (average of $286). Flying from Ottawa to San Diego in March is currently the most expensive (average of $366). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from YOW to SAN?

Find hourly flight availability from Ottawa to San Diego. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated June 12, 2025.

When flying from Ottawa to San Diego, the time of day you fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 71% versus a flight in the morning.

Rainfall in San Diego by month

Plan your trip to San Diego by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in San Diego ranges from 0.0 - 2.3 inches per month. February is typically the wettest month, when rainfall can reach 2.3 in. July is typically the driest time to visit San Diego when rainfall is around 0.0 in.

Temperature in San Diego by month

Plan your trip to San Diego by taking into account the average temperature totals by month.

If weather is an important factor for your trip to San Diego, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 71.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 57.2 F).

Reviews of airlines servicing San Diego

Get insights into the airlines that provide service to San Diego. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to San Diego. Reviews last updated June 12, 2025.
Delta
8.0
Very good
7,946 reviews

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Overall

8.0

Food

7.3

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Delta
8.0
Very good
7,946 reviews
Delta
8.0
Very good
7,946 reviews

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Overall

8.0

Food

7.3

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
United Airlines
7.4
Good
8,790 reviews
Delta
8.0
Very good
7,946 reviews

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Overall

8.0

Food

7.3

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
WestJet
7.2
Good
2,868 reviews
Delta
8.0
Very good
7,946 reviews

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Overall

8.0

Food

7.3

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Air Canada
7.1
Good
9,537 reviews
Delta
8.0
Very good
7,946 reviews

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Overall

8.0

Food

7.3

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Lufthansa
6.8
Okay
7,139 reviews
Delta
8.0
Very good
7,946 reviews

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Overall

8.0

Food

7.3

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Related info for your journey

Find useful and relevant information for your journey from Ottawa to San Diego. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What are the cheapest airlines flying from Ottawa to San Diego round-trip?

    WestJet, at $242, was found to be the cheapest airline from Ottawa to San Diego.Alternate airlines to your destination round-trip include United Airlines and Air Canada. WestJet is currently priced 45% below the average price you’ll pay for this route.

  • What are the cheapest airlines to fly from Ottawa to San Diego one-way?

    The cheapest airlines for a one-way flight from Ottawa to San Diego are WestJet ($158), United Airlines ($163), and Air Canada ($178).

  • Can I find deals for flights from Ottawa to San Diego that include hotel bookings?

    Yes. In addition to deals on Ottawa to San Diego flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Ottawa to San Diego?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Ottawa to San Diego.

  • Can I find deals for business class flights from Ottawa to San Diego?

    Yes. Cheapflights offers flight deals from Ottawa to San Diego by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Ottawa to San Diego?

    Currently, August is the cheapest month in which you can book a flight from Ottawa to San Diego (average of $286). Flying from Ottawa to San Diego in March is currently the most expensive (average of $366). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Ottawa?

Book flights to Ottawa if you plan to visit one of these locations
El Cajon
Chula Vista
National City
Imperial Beach
La Mesa
Alpine
Lemon Grove
Poway
Santee
Coronado

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Top 2 airlines flying from Ottawa to San Diego

Discover the top 2 airlines that operate flights from Ottawa to San Diego. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$186Average$429FlexibilityNo cancel feeOn-time67%
United AirlinesCheapest$262Average$405FlexibilityNo cancel feeOn-time69%

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